This is not standalone app! You need a compatible launcher to use this app! If your launcher is not mentioned in this description don't even think to purchase! Or simply install compatible launcher eg. Nova, Apex to apply FUNKONG.
It's free to get the installation package of FUNKONG ICONPACK , also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.0.3 and above. This download is completely secure. Sikebo is the developer of this application that can be found in the Personalization category.